It was while he lived and worked in Philadelphia that he produced what would become some of his most famous tales, including "The Gold Bug," "The Fall of the House of Usher," "The Tell-Tale Heart," and "The Murders in the Rue Morgue." In fact, with the publication of "The Murders in the Rue Morgue" Poe invented the modern mystery story, since a detective, C. Auguste Dupin, solved crimes through a process of rational thinking. Dupin was the predecessor of Arthur Conan Doyle’s Sherlock Holmes, Agatha Christie’s Hercule Poirot, and television sleuths Columbo and Jessica Fletcher.